Design And Mplementation Of Multi- Protocol Virtual Network Control Management Component

With the development and popularization of the Internet, the net-work has already become one of the basic support for people's life, work and entertainment learning. However, the existing network architecture has become increasingly difficult to meet the needs of individuals, busi-nesses and operators. OpenFlow, this centralized network architecture conform to the needs of the times has been gradually developed. In this new network architecture, cloud computing, network virtualization and so on technology has also been rapid development.Based on the OpenDayLight opensource controller,this dissertation takes the network virtualization as the goal, uses the OpenFlow network controller centralized control network characteristic,the unified management bottom physical network, carries on the network virtualization, provides a virtual network environment for the upper business controller. In order to better provide network virtualization services, this article read the database configuration to dynamically allocate virtual network resources, analog switches connected to the upper business controller provides a standard OpenFlow protocol interface, the initial flow table to the underlying switch to the data Plane flow to isolate. Processing the switch between the control message and the controller to complete the isolation of network resources. Then, this dissertation describes the design and implementation of virtual network control management component, which includes the interface between virtual controller and extended switch, virtual network configuration management, control message processing, multiprotocol configuration and network management visual interface. Finally, a series of system test schemes and test results analysis are given, and the functions of multiprotocol analysis, virtual network resource isolation and virtual network service support are verified.